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Vulnerabilities / CVE-2019-9789

critical

CVE-2019-9789

Mozilla developers and community members reported memory safety bugs present in Firefox 65.

Published Modified CWE 787
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 65. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 66.

Affected packages and fixed versions

SourcePackageFixed in
ubuntu 14.04firefox66.0.1+build1-0ubuntu0.14.04.1
ubuntu 16.04firefox66.0+build3-0ubuntu0.16.04.2
ubuntu 18.04firefox66.0+build3-0ubuntu0.18.04.1
ubuntu 18.10firefox66.0+build3-0ubuntu0.18.10.1
ubuntu 19.04firefox66.0+build3-0ubuntu1
ubuntu 19.10firefox66.0+build3-0ubuntu1
ubuntu 20.04firefox66.0+build3-0ubuntu1
ubuntu 20.10firefox66.0+build3-0ubuntu1
ubuntu 21.04firefox66.0+build3-0ubuntu1
ubuntu 21.10firefox66.0+build3-0ubuntu1
ubuntu 22.04firefox66.0+build3-0ubuntu1
ubuntu 22.10firefox66.0+build3-0ubuntu1
Show all 15 entries from 15 sources
SourcePackageFixed in
ubuntu 14.04firefox66.0.1+build1-0ubuntu0.14.04.1
ubuntu 16.04firefox66.0+build3-0ubuntu0.16.04.2
ubuntu 18.04firefox66.0+build3-0ubuntu0.18.04.1
ubuntu 18.10firefox66.0+build3-0ubuntu0.18.10.1
ubuntu 19.04firefox66.0+build3-0ubuntu1
ubuntu 19.10firefox66.0+build3-0ubuntu1
ubuntu 20.04firefox66.0+build3-0ubuntu1
ubuntu 20.10firefox66.0+build3-0ubuntu1
ubuntu 21.04firefox66.0+build3-0ubuntu1
ubuntu 21.10firefox66.0+build3-0ubuntu1
ubuntu 22.04firefox66.0+build3-0ubuntu1
ubuntu 22.10firefox66.0+build3-0ubuntu1
ubuntu 23.04firefox66.0+build3-0ubuntu1
ubuntu 23.10firefox66.0+build3-0ubuntu1
ubuntu 24.04firefox66.0+build3-0ubuntu1

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.